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Missing parts on Voodoo 1 card (photo included), no 3D image

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First post, by seleryba

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Hi guys.
I've found the Voodoo 1 card, it's probably ColorMAX VP-503. It's been recognised by Windows. But there's no image when I tried to run 3dfx demo or Quake II.

I found that two parts are missing. They're close to the VGA port and I suppose it's common part for VGA circuits. But what's that and what can I use to fulfil the empty pads? It looks like transistor or diode.

I've marked the elements on the generic image from the web and included it as attachment.
Could you help me please?

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  • voodoo.jpg
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    voodoo.jpg
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    392.22 KiB
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    434 views
    File license
    Fair use/fair dealing exception

Reply 1 of 4, by Horun

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Those appear to be micro transistors or bridge type diodes and yes they are there. What is your main video card and are you using a short pass-thru (or a VGA extension) cable from the main vid card db15 to the voodoo input port ?

Hate posting a reply and then have to edit it because it made no sense 😁 First computer was an IBM 3270 workstation with CGA monitor. Stuff: https://archive.org/details/@horun

Reply 2 of 4, by dosgamer

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The "D" means it's a diode. WTF are even "micro transistors"? 😁

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Reply 3 of 4, by Horun

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from the picture they appear to have three legs and look like micro smd transistors, yeah I know there is a D.
https://electronics.stackexchange.com/questio … igured-as-diode

Hate posting a reply and then have to edit it because it made no sense 😁 First computer was an IBM 3270 workstation with CGA monitor. Stuff: https://archive.org/details/@horun

Reply 4 of 4, by Tiido

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Those are ESD protection diodes and lack of them shouldn't hamper operation, unless some trace is severed or a pad is ripped off where they are which is likely.

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